The Journal of Reliability Engineering Association of Japan

Online ISSN : 2424-2543
Print ISSN : 0919-2697
ISSN-L : 0919-2697

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Volume 40, Issue 5

Displaying 1-13 of 13 articles from this issue

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The Role Played and to Fulfill of Reliability Engineering Association of Japan

Masao MUKAIDONO

2018 Volume 40 Issue 5 Pages 250-251
Published: 2018
Released on J-STAGE: January 13, 2022

DOIhttps://doi.org/10.11348/reajshinrai.40.5_250

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Memories of Old REAJ and New REAJ and Now

Kiyoshi NIKAWA

2018 Volume 40 Issue 5 Pages 252-255
Published: 2018
Released on J-STAGE: January 13, 2022

DOIhttps://doi.org/10.11348/reajshinrai.40.5_252

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A Transition of Reliability Issues and Research

Hideo NAKAMURA

2018 Volume 40 Issue 5 Pages 256-259
Published: 2018
Released on J-STAGE: January 13, 2022

DOIhttps://doi.org/10.11348/reajshinrai.40.5_256

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Safety, Human and Society

Katsuji AKITA

2018 Volume 40 Issue 5 Pages 260-261
Published: 2018
Released on J-STAGE: January 13, 2022

DOIhttps://doi.org/10.11348/reajshinrai.40.5_260

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When I Accessed Reliability

Gyo KAJIWARA

2018 Volume 40 Issue 5 Pages 262-263
Published: 2018
Released on J-STAGE: January 13, 2022

DOIhttps://doi.org/10.11348/reajshinrai.40.5_262

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Four Methods That Changed Software Reliability Studies

Toru KIKUNO

2018 Volume 40 Issue 5 Pages 264-269
Published: 2018
Released on J-STAGE: January 13, 2022

DOIhttps://doi.org/10.11348/reajshinrai.40.5_264

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For the 40 Years Anniversary of REAJ

Kazuyuki SUZUKI

2018 Volume 40 Issue 5 Pages 270-271
Published: 2018
Released on J-STAGE: January 13, 2022

DOIhttps://doi.org/10.11348/reajshinrai.40.5_270

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Future Reliability and the Way of Reliability Engineers

Yasushi KADOTA

2018 Volume 40 Issue 5 Pages 272-275
Published: 2018
Released on J-STAGE: January 13, 2022

DOIhttps://doi.org/10.11348/reajshinrai.40.5_272

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The 40th Anniversary of REAJ －Past and Future－

Nobuyasu KANEKAWA

2018 Volume 40 Issue 5 Pages 276-277
Published: 2018
Released on J-STAGE: January 13, 2022

DOIhttps://doi.org/10.11348/reajshinrai.40.5_276

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Contribution of the REAJ to Space Development & Utilization

Nobuo TAKEUCHI

2018 Volume 40 Issue 5 Pages 278-279
Published: 2018
Released on J-STAGE: January 13, 2022

DOIhttps://doi.org/10.11348/reajshinrai.40.5_278

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Towards the Next 50th Anniversary

Tadashi DOHI

2018 Volume 40 Issue 5 Pages 280-282
Published: 2018
Released on J-STAGE: January 13, 2022

DOIhttps://doi.org/10.11348/reajshinrai.40.5_280

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A study of the advantage of the “Single Thread Method” and a proposal of the “Exclusive Double Thread Method”

Masaya MORI

2018 Volume 40 Issue 5 Pages 309-317
Published: 2018
Released on J-STAGE: January 13, 2022

DOIhttps://doi.org/10.11348/reajshinrai.40.5_309

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The railway signaling safety devices in Japan have been adopting the “Single Thread Method” as the task control method in order to assure the safety and the reliability of the software. For the purpose of evaluating the effectiveness of the “Single Thread Method”, this paper reports the analysis of error data on software of two signaling safety devices that have almost same specification and were respectively developed by the “Multitask Method” and the “Single Thread Method”. As a result, this paper reports the data indicated that the “Single Thread Method” has an advantage in the rate that errors were wrongly mixed in. Furthermore, in consideration of the recent needs, this paper proposes the “Exclusive Double Thread Method” which is a new task control method developed from the “Single Thread Method”, and estimates the merit of introducing this new method.

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Study of Safety and Reliability Analysis considering Failure Detection and Foreknowledge on Railway

Takeshi MIZUMA, Morimasa HAYASHIDA

2018 Volume 40 Issue 5 Pages 319-329
Published: 2018
Released on J-STAGE: January 13, 2022

DOIhttps://doi.org/10.11348/reajshinrai.40.5_319

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Japanese railway took a successful safety record in comparison with other countries. However,its reliability including availability is not necessarily favorable recently. This owes to taking much time for repairing in the case of system failure on railway in Japan. Accordingly, it is important to take measures for upgrading availability on ailway and for this reason, it is necessary to foreknow the failure beforehand as though it is important to detect failure and stop safely. This paper describes the example of reliability analysis considering failure detection, foreknowledge and exchange of units that succeed foreknowledge on railway.

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